467 results about "Ultrasonic machining" patented technology

The invention relates to an accessory non-contact power supply type rotary ultrasonic machining device belonging to the technical field of precision machining of hard brittle materials and aiming at promoting a common machine tool to an ultrasonic auxiliary rotary machining machine tool capable of carrying out the precision machining of the hard brittle materials without changing the traditional part of the machine tool. The accessory non-contact power supply type rotary ultrasonic machining device comprises a direct digital frequency synthesis ultrasonic generator with frequency automatic-tracking function, an ultrasonic tool shank with a standard main shaft interface, and an ultrasonic vibration system, wherein the ultrasonic vibration system is integrated in the ultrasonic tool shank on the basis of the ultrasonic tool shank and adopts a non-contact electromagnetic conversion type power supply method; and the ultrasonic tool shank is integrated on a main shaft of the common machine tool through the standard main shaft interface. The invention is mainly used for the design and the manufacture of a precision machining device of the hard brittle materials.

The invention relates to an elliptical ultrasonic vibration auxiliary cutting device with an adjustable track, which consists of a transducer, an amplitude transformer and a cutter, wherein the transducer adopts a basic structure of a longitudinal vibration sandwiched piezoelectric chip, has revolution asymmetric characteristic structures of an overlapping structure of semicircular ring-shaped piezoelectric ceramic chips and electrode chips separately, an off-axis type catenary variable-amplitude structure and the like, and initiates and strengthens flexural vibration when longitudinal vibration is output; the amplitude transformer is a cylindrical bar with uniform cross sections, and a relative angle between the amplitude transformer and a front cover plate is adjustable; and the cutter is installed in an offset way in the radial direction at the tail end of the amplitude transformer, and the offset degree can be adjusted. The working frequency of the invention is higher than 20kHz and can better achieve the ultrasonic machining effect; the elliptical cutting track is long, the minor axis proportion is reasonable, so that the advantages of elliptical cutting can be fully used; the elliptical track can be adjusted to better adapt to machining of different machining materials and different cutting consumption; and single-point diamond ultraprecise cutting can be hopefully expanded to machining of iron-based materials and optical crisp and hard materials.

The invention discloses a fixed abrasive ultrasonic machining device and method, belongs to the machining field of hard and brittle materials, and can be used for abnormal hole machining and plane grinding. The fixed abrasive ultrasonic machining device comprises an X-Y-axis feeding device, a working trough, a column of a main shaft, a fixed abrasive tool, a Z-axis servo feeding device and an ultrasonic wave generation system, wherein the ultrasonic wave generation system uses an ultrasonic constant current power supply; the ultrasonic constant current power supply comprises a collecting unit for collecting currents and voltages of two ends of an ultrasonic transducer and a processing unit for calculating equivalent impedance of an ultrasonic machining system; the processing unit which compares the calculated equivalent impedance with an impedance set value adjusts the feeding speed of the fixed abrasive tool and/or the output current of an ultrasonic wave generator. The fixed abrasive ultrasonic machining device disclosed by the invention not only is simple in structure and high in machining precision, but also is fast in response speed, and the stability of a fixed abrasive ultrasonic machining process is improved.

A device for use in a machining system, including an ultrasonic transducer, wherein the ultrasonic transducer is adapted to receive a tool bit; a housing adapted to be both compatible with the machining system and to receive the ultrasonic transducer, wherein the housing is operative to isolate all radial and other vibrations generated by the ultrasonic transducer except the axial vibrations transmitted to the tool bit; and a tool holder, wherein the tool holder and the top portion of the housing are mechanically coupled to one another.

The present invention relates to an ultrasonic and electrolytic combined microfine machining method and its equipment. Said invention can make ultrasonic machining method and electrolytic machining method be organically combined together to implement machining of microdevice. Said equipment includes the following several portions: electrolyzer, ultrasonic vibration drive device, working table, micropressure regulation and Z-direction automatic feeding measurement device and electrolytic current measurement analysis device. Besides, said invention also provides the working principle and concrete steps of said method.

The invention discloses a rotary ultrasonic machining device based on non-contact energy transfer. The rotary ultrasonic machining device based on non-contact energy transfer comprises a high-speed electric spindle, a primary side assembly fixed to the lower end of the high-speed electric spindle, an ultrasonic knife handle assembly composed of an ultrasonic knife handle and a secondary side assembly arranged on the periphery of the ultrasonic knife handle, and an ultrasonic power supply generator. The ultrasonic knife handle assembly is arranged at the lower end of the high-speed electric spindle, so that the secondary side assembly corresponds to the primary side assembly up and down. The ultrasonic power supply generator is connected with the primary side assembly. According to the rotary ultrasonic machining device based on non-contact energy transfer, the ultrasonic machining technology can be directly combined with existing computer numerical control (CNC) machining centers such as CNC engraving and milling machines, engraving and milling machines, high-gloss CNC machines and drilling and tapping centers, and original spindles do not need to be modified; non-contact energy transfer of ultrasonic waves is achieved through the primary side assembly and the secondary side assembly, and the rotation speed reaches 10,000 turns/min; in addition, the automatic knife switching function can be achieved by using an exiting magazine.

The novel methods, apparatus and reworked rotary braking surface product, for example those exhibited on interior cylindrical braking surfaces of a cast iron brake drum, serve to replace manufacturing defects exhibiting residual tensile stresses and outwardly directed tool marks with smooth compressed braking surfaces in a final manufacturing stage. The plastically deformed surface shape with reduced roughness and surface irregularities furthermore presents improved braking strength above the yield point and approaching the ultimate material strength of the base drum material. An ultrasonic transducer drives individual freely moving impact elements of a set at frequencies up to 55 kHz into the braking surface to effect plastic deformation at surface and sub-surface layers. Physically, the small sized ultrasonic transducer is inserted into a drum cylinder and driven by a lathe producing relative motion between the braking surface and the ultrasonically vibrating impact elements scanning only the braking surface in a readily controlled ultrasonic impact machining cycle for attaining specified braking surface performance.

The invention discloses a non-contact energy transmission type ultrasonic machining device. The non-contact energy transmission type ultrasonic machining device comprises a grinding head, an amplitude-change rod, a front cover plate, piezoelectric ceramic, secondary magnetic ring coil, a primary magnetic ring coil and a tool handle. The grinding head, the amplitude-change rod, the front cover plate and the tool handle are sequentially connected, the piezoelectric ceramic is arranged in a concave assembly position of the tool handle, the secondary magnetic ring coil is fixed to the front cover plate, the primary magnetic ring coil is arranged on a mechanical arm of an ultrasonic machine, and gap is formed between the secondary magnetic ring coil and the primary magnetic ring coil. The non-contact energy transmission type ultrasonic machining device is ingenious and reasonable in structural design; because of the non-contact energy transmission structure design, not only is non-contact high-efficiency transmission of electric energy achieved, but also the problem of traditional slip ring abrasion in ultrasonic machining is solved, the heat generation phenomenon caused by contact friction is avoided, the rotation speed of a spindle is increased without limitations, and meanwhile the automatic tool changing requirement of a machining center can be met; moreover, because no exposed conductors exist, electric energy transmission is not influenced by environments, and the non-contact energy transmission type ultrasonic machining device is good in working stability, safe, reliable, capable of keeping work for a long time and high in working efficiency.

The invention provides a digital control ultrasonic processing device for a common lathe. The device comprises a pedestal, an intermediate guide rail, an upper support plate and a rotary tool rest, wherein the bottom surface of the pedestal is provided with a dovetail groove; the intermediate guide rail is arranged on the pedestal through a vertical guide rail; the upper support plate is arranged on the intermediate guide rail through a horizontal guide rail; an intermediate shaft is arranged inside the upper support plate; the rotary tool rest is arranged on the intermediate shaft; a patch panel and an electric brush panel are arranged between the rotary tool rest and the upper support plate; an electric brush is connected between the patch panel and the electric brush panel; a lead screw feeding mechanism is arranged on the intermediate guide rail and the upper support plate; a tool rest automatic tool change mechanism is arranged between the upper support plate and the rotary tool rest; a lathe tool, a round amplitude transformer and an external circular amplitude transformer are arranged on the rotary tool rest; and a processing tool bit is arranged on the two amplitude transformers and connected with an energy converter respectively. The digital control ultrasonic processing device for the common lathe has high efficiency and high processing precision and can complete turning, ultrasonic processing of the external circular face and ultrasonic processing of the crown face by clamping for one time.

The invention discloses a high-speed high-precision five-axis ultrasonic machine tool comprising a machine tool body device, a cutter magazine device, a main shaft head device and a worktable device. The high-speed high-precision five-axis ultrasonic machine tool adopts a portal frame with continuous and stable performance as a foundation, is high in rigidity, hardly affected by heat and meets the high-precision ultrasonic machining requirement. Double driving linear motors are adopted in the Y-axis direction, grating scales are used as position feedback devices, thus a full-closed loop feedback system is constituted, and the highest precision and the part precision are guaranteed. A cutter assembly body with an ultrasonic function has the special effect on breaking chips and removing cut chips on a cutter, the broken cut chips are finer, and thus cutter abrasion is reduced significantly. An electric main shaft is used for driving the cutter to rotate at a high speed, electricity is supplied to transducers in a non-contact electricity supply mode, and the high-speed cutting technology and the efficient ultrasonic hard and brittle material grinding technology are integrated. A rotating telescopic motor and a manipulator are used for rapid cutter replacement, and under the premise of one-time clamping, various ultrasonic machining techniques can be achieved or coarse machining and finish machining can be completed at a time.

The invention belongs to the technical field of strengthening of tooth surfaces of gears, and discloses an ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears. The ultrasonic deep rolling technology and the involute generation theory are organically combined, and the ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears comprises an ultrasonic generating device, an L-shaped ultrasonic machining head, a pressure feeding device, a first slide plate, a second slide plate, a base circular plate, a guide scale and a base. The ultrasonic generating device is used for generating high-frequency high-energy vibration. Initial static pressure is regulated by means of adjusting the pressure feeding device, the guide scale drives the base circular plate and a gear to rotate by the aid of friction force, gear teeth of the strengthened gear and the ultrasonic machining head move in a meshed manner, and simultaneously, ultrasonic strengthening of the surface of the strengthened gear is completed by the ultrasonic machining head in a linear contact manner. Ultrasonic strengthening of the integral tooth surface is realized under joint actions of the high-frequency high-energy vibration and the static pressure, a residual stress layer with a certain depth is formed on the gear tooth surface of the strengthened gear, and accordingly purposes of improving stress state of the gear after the gear is ground and prolonging the service life of the gear are achieved.

The invention discloses an ultrasonic longitudinal torsion vibration machining device. The device comprises a shank module, a transducer module, a cutter module and a non-contact energy transmission module; the shank module includes an upper shaft connected with a machine tool main shaft, and a hollow lower shaft; the upper shaft and the lower shaft rotate along with the machine tool main shaft; the transducer module includes a piezoelectric ceramic wafer mounted in the lower shaft, and a variable amplitude rod fixedly connected to the lower end of the lower shaft; the cutter module is fixed at the lower end of the variable amplitude rod; and the piezoelectric ceramic wafer is connected with an electric energy output end of the non-contact energy transmission module. The invention further provides an ultrasonic longitudinal torsion vibration machining process. The ultrasonic longitudinal torsion vibration machining device and the machining process have the following beneficial effects that (1) an adjusting module is adopted to adjust a magnetic gap between primary and secondary coils and the axis deflection, so that the high-efficiency transmission of electric energy is guaranteed, and the machining quality and efficiency are improved; and (2) the non-contact energy transmission design is adopted to solve the energy consumption by the slide ring wear in traditional ultrasonic machining.

The present invention provides a high-effective ultrasonic processing equipment. Its structure is formed base, machine body, guideways, ultrasonic vibration working device, working table, main shaft feeding device, control device and ultrasonic generator. The machine body is placed on the base, said guide ways are parallelly placed on the machine body, the ultrasonic vibration working device is connected with guideways and can be up-down moved along the guideways by means of supporting plate of main shaft feeding device, the working table is placed on the base under the ultrasonic vibration working device, the control device is placed in the internal cavity of the base and is connected with main shaft feeding servo-actuator and sensor and energy converter of ultrasonic vibration working device by means of wires and can be formed into a closed-loop control circuit, and the ultrasonic generator is placed in the internal cavity of base and is connected with energy converter by means of wire.

The invention discloses a multifunctional machining integrated machine for additives and consumables. The multifunctional machining integrated machine for the additives and the consumables comprises a structural frame, a driving device, a work platform, a digital control device, a function conversion device and a machine device capable of achieving modular replacement. The driving device comprises a driving motor, a conveying belt, a lead screw and a guide rail. The digital control device comprises an input device, a memorizer, a controller, an arithmetic unit and an output device. The machining device capable of achieving modular replacement comprises a 3D printing device, a laser machining device, a digital control machining device, an ultrasonic machining device, an electronic beam machining device, an electrosparking device and a plasma machining device. All the machining devices can be modularly replaced on the function conversion device according to needs. A user can select one or more machining devices to cooperatively carry out fast modeling, forming and precision machining. The multifunctional machining integrated machine for the additives and the consumables is convenient to use and efficient in machining, saves resources and has high economical efficiency.

The invention provides a lathe ultrasonic metal surface machining technology. The lathe ultrasonic metal surface machining technology includes the following steps: step (1), an ultrasonic cutter used for a lathe is mounted on a cutter frame of the lathe, or an ultrasonic metal surface machining device used for the lathe is mounted on a lathe bed of the lathe; step (2), cables between the ultrasonic cutter and an external ultrasonic generator are connected; step (3), a workpiece is mounted on a main shaft of the lathe in a clamped mode, and machining requirements of the surface of the workpiece before ultrasonic machining are chosen according to materials of the workpiece; step (4), a feeding mechanism of the lathe is operated, or the ultrasonic metal surface machining device used for the lathe is operated, so that the ultrasonic cutter on the cutter frame of the lathe is enabled to contact the workpiece and apply certain pressure on the workpiece; and step (5), the surface of the workpiece is subjected to the ultrasonic machining. According to the lathe ultrasonic metal surface machining technology, a clamping method and technological parameters are specified clearly when the workpiece on the lathe is subjected to the ultrasonic machining, the effect that the ultrasonic machining is carried out in the best state is guaranteed, and the best ultrasonic machining effect is achieved.

An elliptical ultrasonic machining device powered by non-contact induction mainly includes an induction power supply device and an elliptical ultrasonic spindle shank, wherein: induction power supply secondary units of the induction power supply device encircle a spindle shank shell of the elliptical ultrasonic spindle shank; induction power supply primary units are arranged at a primary magnetic core seat outside the elliptical ultrasonic spindle shank; the primary magnetic core seat and the elliptical ultrasonic spindle shank have a same circle center, and a small gap exists between the primary magnetic core seat and the elliptical ultrasonic spindle shank; the primary magnetic core seat is fastened on a machine tool spindle seat of a machine tool through a support and keeps still; the elliptical ultrasonic spindle shank is mounted on a machine tool spindle through a taper shank and rotates with the spindle in a high speed.

The invention provides an ultrasonic processing tool for a mold cavity. The ultrasonic processing tool comprises a conical handle, a shell, an inner sleeve, an energy converter and an amplitude transformer, wherein the shell is connected with the conical handle; the inner sleeve is sleeved in the shell; a spring is arranged between the inner sleeve and the shell along the axial direction; a limiting device used during movement of the inner sleeve is arranged between the inner sleeve and the shell; the amplitude transformer is arranged in the inner sleeve, and is fixed through a gland connected to the inner sleeve; the front end of the amplitude transformer projects out of the inner sleeve; the energy converter is arranged at the back end of the amplitude transformer; and the front end of the amplitude transformer is provided with a spherical processing head. The ultrasonic processing tool can be directly applied to a numerical control machine tool as a cutter and is arranged on a main shaft of the applied numerical control machine tool through the conical handle, the spherical head at the front end of the amplitude transformer is contacted with the mold cavity by moving the main shaft, and the entire ultrasonic processing tool is controlled to move along the locus of the mold cavity through the machine tool, so that the ultrasonic processing of the mold cavity is finished. The ultrasonic processing tool has a simple structure, and is convenient to use; and the surface processing effect and efficiency of the mold cavity are improved.

The invention relates to a frequency tracking circuit structure for an ultrasonic power supply, specifically, which is used for ultrasonic screening, ultrasonic plastic welding, ultrasonic metal welding, ultrasonic machining and other application domains. The frequency tracking circuit comprises a current transformer, a photocouping voltage sampling circuit, a first bandwidth limited circuit, a second bandwidth limited circuit, a first comparing and shaping circuit, a second comparing and shaping circuit, a first frequency dividing circuit with output terminal connected with the input terminal of a phase-detecting circuit, and a second frequency dividing circuit with output terminal connected with the input terminal of the phase-detecting circuit, wherein the output terminal of the phase-detecting circuit is sequentially connected with a low-pass filter circuit, a voltage current switching circuit, and a voltage-controlled oscillation frequency control circuit. The invention uses frequency dividing circuit, so that when operating at resonant frequency, the voltage and current in transducer circuit are at the same state, thereby achieving the purpose of automatic frequency tracking.

The invention discloses a method for making foods by ultrasonic waves. According to the technical scheme, in the food processing process, the temperature is between -5 DEG C and 95 DEG C, and the adopted ultrasonic frequency is 20-200 KHz. The novel method has the beneficial effects of no production of harmful substances during processing, short production period, few production procedures, saving of places and workers as well as water and power and reduction of three-waste emission, and is capable of keeping the nutrition, flavor and safety of foods.

An ultrasonic processing method and an ultrasonic processing device may include a controlling/regulating module, preferably a digital controlling/regulating module, which is integrated into a signal processing of the ultrasonic generator so that a plurality of generator data with respect to the ultrasonic generator are processible in the ultrasonic generator. At this, a power actual value Pist is compared with a power reference value Psoll of the ultrasonic generator via a gap regulator in the controlling/regulating module to specify a position reference value POSsoll of the sonotrode relative to the roll for adjustment of the power reference value Psoll of the ultrasonic generator, and/or a power actual value Pist is compared with a power reference value Psoll of the ultrasonic generator via an amplitude regulator in the controlling/regulating module to specify an amplitude reference value Asoll to the ultrasonic generator for adjustment of the power reference value Psoll.

On a wafer, patterns of arrayed waveguide gratings are formed. Each arrayed waveguide grating has an arcuate shape obtained by arranging two curved-line portions convexed in the same direction at a predetermined spacing and connecting respective end portions thereof with two mutually parallel straight lines. These arrayed waveguide gratings are cut out along straight cutting paths and curved cutting paths in which two arcuate portions of the same shape are arranged side by side in a lateral direction. Thus, a larger number of chips can be produced as compared with a case where each array waveguide grating is cut out in a rectangular shape. Ultrasonic machining techniques or sandblast machining techniques are suitable for the cutting operation.

The invention provides a motorized spindle comprising a machine body assembly, a central spindle body, a motor, a pull rod, an elastic component, an ultrasonic vibrator and a power supply assembly. The central spindle body is connected into the machine body assembly in a penetrating mode and is matched with the machine body assembly in a pivoting mode. The motor is installed in the machine body assembly and is used for driving the central spindle body to rotate. The pull rod is connected into the central spindle body in a penetrating mode and can move in the axial direction of the central spindle body. The lower end of the pull rod is connected with a cutter. The elastic component is installed between the central spindle body and the pull rod and is used for jacking the pull rod upwards. The ultrasonic vibrator is fixed to the lower end of the central spindle body. A clamping portion which clamps the cutter when the pull rod tends to pull the cutter to move upwards is arranged in the ultrasonic vibrator. The power supply assembly is used for providing electricity for the ultrasonic vibrator. The central spindle body of the motorized spindle body can conduct axially high-frequency vibration during high-speed rotation, ultrasonic machining is conducted on the machined surface of a workpiece, cutting force is reduced, the defects of burning damage, deformation, residual stress and the like are effectively overcome, the service life of the cutter is prolonged, and hard brittle materials can be machined.

The invention discloses an electrophoresis auxiliary micro-ultrasonic machining tool and a method for implementing electrophoresis auxiliary micro-ultrasonic machining by the utilization of the machine tool. The machining tool comprises a spindle system, an electricity feeding system, a spindle micro-ultrasonic longitudinal vibration system and a multi-functional cup-shaped working solution groove. A novel combined machining technology is provided, absorption of electrophoreses is added to the micro-ultrasonic machining, so that micro abrasive grains in ultrasonic machining working solution are driven by electric field force to move to neighborhood of a machining area, and existence of the abrasive grains in the machining area is guaranteed. The utilization ratio of the abrasive grains can be effectively improved, so that the efficiency of the micro-ultrasonic machining is improved.

The invention relates to an air suspension type ultrasound superspeed electric spindle. A hollow spindle is installed in a shell in a penetrating manner, a rotor is connected to the middle portion ofthe spindle and corresponds to a stator, an upper rotating supporting block and a lower rotating supporting block are arranged between the lower portion of the shell and the spindle, an upper air supply channel is arranged between the upper rotating supporting block and the shell, a lower air supply channel is arranged between the lower rotating supporting block and the shell, an air inlet communicates with the upper air supply channel and the lower air supply channel, an amplitude-change pole and an energy converter are installed at the lower portion of the spindle in a penetrating manner, the lower end of the amplitude-change pole is connected with a cutter, and the upper rotating supporting block and the lower rotating supporting block are each formed by porous materials. After high-pressure air is led into the rotating supporting blocks made of the porous materials, air suspension of the spindle is achieved, the spindle rotates at the ultra-high speed, a one-face-two-pin positioning manner is used for achieving positioned connection of the ultrasonic machining amplitude-change pole and the spindle, a flange is in the not vibration state, ultrasound vibration is prevented from being transmitted to the spindle, and the superspeed stable rotation of the spindle is guaranteed.

The invention relates to an ultrasonic wave processing method for an outer surface of a hydraulic cylinder lever with a large cylinder diameter, sequentially comprising the following process steps of: installing an ultrasonic wave cutter assembly on a tool rest of a common machine tool; installing a tool bit on the ultrasonic wave cutter assembly and adjusting a ball; verifying whether the tool bit starts oscillation or not after the ball is adjusted; installing a dial indicator on a dial stand after the ultrasonic wave cutter assembly is verified, then pressing down the dial indicator 0.1 mm to a back cover of the ultrasonic wave cutter assembly, and adjusting a dial to a zero position so as to read the static pressure of the ball and the surface of a work-piece; and processing parts. The invention has the advantages of low work-piece processing cost and high production efficiency because of saving the intermediate transfer process of the work-piece, high smooth finish, high rigidity and favorable wear resistance of work-piece surface when the work-piece is processed by utilizing the processing method, fast processing speed, simple cutter replacing, easy operation and low cost after the cutter is damaged; meanwhile line allowance is easily ensured because the localization benchmark of processing a liveware is the same benchmark.